Updated builds.

build/three.js

@@ -44992,6 +44992,106 @@
 	PolarGridHelper.prototype = Object.create( LineSegments.prototype );
 	PolarGridHelper.prototype.constructor = PolarGridHelper;
 
+	/**
+	 * @author Mugen87 / http://github.com/Mugen87
+	 */
+
+	function PositionalAudioHelper( audio, range, divisionsInnerAngle, divisionsOuterAngle ) {
+
+		this.audio = audio;
+	 	this.range = range || 1;
+	 	this.divisionsInnerAngle = divisionsOuterAngle || 16;
+		this.divisionsOuterAngle = divisionsOuterAngle || 2;
+
+		var geometry = new BufferGeometry();
+		var divisions = this.divisionsInnerAngle + this.divisionsOuterAngle * 2;
+		var positions = new Float32Array( ( divisions * 3 + 3 ) * 3 );
+		geometry.addAttribute( 'position', new BufferAttribute( positions, 3 ) );
+
+		var materialInnerAngle = new LineBasicMaterial( { color: 0x00ff00 } );
+		var materialOuterAngle = new LineBasicMaterial( { color: 0xffff00 } );
+
+		Line.call( this, geometry, [ materialOuterAngle, materialInnerAngle ] );
+
+		this.update();
+
+	}
+
+	PositionalAudioHelper.prototype = Object.create( Line.prototype );
+	PositionalAudioHelper.prototype.constructor = PositionalAudioHelper;
+
+	PositionalAudioHelper.prototype.update = function () {
+
+		var audio = this.audio;
+		var range = this.range;
+		var divisionsInnerAngle = this.divisionsInnerAngle;
+		var divisionsOuterAngle = this.divisionsOuterAngle;
+
+		var coneInnerAngle = _Math.degToRad( audio.panner.coneInnerAngle );
+		var coneOuterAngle = _Math.degToRad( audio.panner.coneOuterAngle );
+
+		var halfConeInnerAngle = coneInnerAngle / 2;
+		var halfConeOuterAngle = coneOuterAngle / 2;
+
+		var start = 0;
+		var count = 0;
+		var i, stride;
+
+		var geometry = this.geometry;
+		var positionAttribute = geometry.attributes.position;
+
+		geometry.clearGroups();
+
+		//
+
+		function generateSegment( from, to, divisions, materialIndex ) {
+
+			var step = ( to - from ) / divisions;
+
+			positionAttribute.setXYZ( start, 0, 0, 0 );
+			count ++;
+
+			for ( i = from; i < to; i += step ) {
+
+				stride = start + count;
+
+				positionAttribute.setXYZ( stride, Math.sin( i ) * range, 0, Math.cos( i ) * range );
+				positionAttribute.setXYZ( stride + 1, Math.sin( Math.min( i + step, to ) ) * range, 0, Math.cos( Math.min( i + step, to ) ) * range );
+				positionAttribute.setXYZ( stride + 2, 0, 0, 0 );
+
+				count += 3;
+
+			}
+
+			geometry.addGroup( start, count, materialIndex );
+
+			start += count;
+			count = 0;
+
+		}
+
+		//
+
+		generateSegment( - halfConeOuterAngle, - halfConeInnerAngle, divisionsOuterAngle, 0 );
+		generateSegment( - halfConeInnerAngle, halfConeInnerAngle, divisionsInnerAngle, 1 );
+		generateSegment( halfConeInnerAngle, halfConeOuterAngle, divisionsOuterAngle, 0 );
+
+		//
+
+		positionAttribute.needsUpdate = true;
+
+		if ( coneInnerAngle === coneOuterAngle ) this.material[ 0 ].visible = false;
+
+	};
+
+	PositionalAudioHelper.prototype.dispose = function () {
+
+		this.geometry.dispose();
+		this.material[ 0 ].dispose();
+		this.material[ 1 ].dispose();
+
+	};
+
 	/**
 	 * @author mrdoob / http://mrdoob.com/
 	 * @author WestLangley / http://github.com/WestLangley
@@ -47742,6 +47842,7 @@
 	exports.HemisphereLightHelper = HemisphereLightHelper;
 	exports.GridHelper = GridHelper;
 	exports.PolarGridHelper = PolarGridHelper;
+	exports.PositionalAudioHelper = PositionalAudioHelper;
 	exports.FaceNormalsHelper = FaceNormalsHelper;
 	exports.DirectionalLightHelper = DirectionalLightHelper;
 	exports.CameraHelper = CameraHelper;